Rotary Locking Mechanism for Medical Stapler Adapter
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Solution Overview
Problem
Existing medical staplers face safety and efficiency issues due to unpredictable adapter rotation during surgeries, either from external forces or user mistakes, and require additional manual locking operations, which can disrupt surgical precision and efficiency.
Innovation Solution
A medical device with a rotation locking mechanism that automatically locks the adapter once the actuator's position is determined, using a first and second rotation locking mechanism connected via a transmission mechanism, ensuring the adapter remains locked during staple firing and unlocking automatically after completion, preventing unintended rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If no rotation locking mechanism is provided, then the adapter can rotate freely for easy positioning, but the adapter rotates unexpectedly due to external forces or user mistakes, affecting surgery safety
Solution Approach 1:
The rotation locking mechanism automatically locks the adapter when the actuator reaches a predetermined position, without requiring manual intervention. The system self-regulates the locking state based on the actuator's position, eliminating the need for user-operated locking switches while preventing unexpected rotation.
Solution Approach 2:
The transmission mechanism provides feedback on the actuator's position to the rotation locking mechanism. When the actuator reaches the predetermined position, the transmission mechanism triggers the locking mechanism to engage, creating a closed-loop control system that automatically responds to position changes.
2Reliability
If a rotation locking mechanism is provided, then adapter rotation stability is improved, but additional manual operations are required for locking and unlocking, affecting surgery efficiency
Solution Approach 1:
The rotation locking mechanism automatically locks the adapter when the actuator reaches a predetermined position, without requiring manual intervention. The system self-regulates the locking state based on the actuator's position, eliminating the need for user-operated locking switches while preventing unexpected rotation.
Solution Approach 2:
The locking mechanism is pre-configured to automatically engage at a predetermined actuator position. The system prepares the locking action in advance through the transmission mechanism's design, so that locking occurs automatically when the actuator reaches the critical position, eliminating the need for manual locking operations during surgery.
3Device complexity
If manual locking operation is required, then device complexity is reduced, but the adapter may be locked unexpectedly due to misoperation, requiring reset operations
Solution Approach 1:
The transmission mechanism provides feedback on the actuator's position to the rotation locking mechanism. When the actuator reaches the predetermined position, the transmission mechanism triggers the locking mechanism to engage, creating a closed-loop control system that automatically responds to position changes.
Solution Approach 2:
The rotation locking mechanism automatically locks the adapter when the actuator reaches a predetermined position, without requiring manual intervention. The system self-regulates the locking state based on the actuator's position, eliminating the need for user-operated locking switches while preventing unexpected rotation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances surgical safety and efficiency by preventing unexpected adapter rotation, maintaining precise anastomosis positioning and eliminating the need for additional user operations to manage locking, thus improving overall surgical quality.
Implementation Method 1
the first elastic mechanism and the second part of the slider are cooperatively disposed; when the second part of the slider is under the action of a force in a first direction, the first elastic mechanism generates an elastic deformation
Data Source
AI summary
A medical device, a stapler, and a rotation locking mechanism, the medical device including a handheld mechanism, a connecting mechanism, and an actuator. The connecting mechanism is connected to the handheld mechanism and the actuator. The handheld mechanism is internally provided with a first rotation locking mechanism and a first transmission mechanism connected to the first rotation locking mechanism. A second rotation locking mechanism matching the first rotation locking mechanism is disposed on the connecting mechanism. When the first transmission mechanism is in a first state, the first rotation locking mechanism and the second rotation locking mechanism are in an unlocked state, such that the connecting mechanism is rotatable. When the first transmission mechanism is in a second state, the first rotation locking mechanism and the second rotation locking mechanism are in a locked state, such that the connecting mechanism is locked, thereby improving surgery safety and surgery efficiency.